shadybison37003 shadybison37003
  • 23-04-2020
  • Mathematics
contestada

y = f(x) = 4^x
Find f(x) when x = -1.
Express as a decimal, rounding to the nearest
thousandth.

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 23-04-2020

Answer:

.25

Step-by-step explanation:

f(x) = 4^x

Let x = -1

f(-1) = 4^-1

The negative in the exponent moves the number from the numerator to the denominator

f(-1) = 1/4

  We want the number in decimal form

      1/4 *25/25 = 25/100 = .25

Answer Link
amna04352
amna04352 amna04352
  • 24-04-2020

Answer:

0.250

Step-by-step explanation:

f(x) = 4^x

x = -1

f(x) = 4^-1

= ¼

= 0.250

Answer Link

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